derek.holloway
7502bf64a4
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187 lines
6.8 KiB
LLVM
187 lines
6.8 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 6
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; RUN: opt -S -mtriple=amdgcn-- -mcpu=gfx700 -passes=amdgpu-codegenprepare %s | FileCheck -check-prefixes=CHECK,GFX7 %s
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; RUN: opt -S -mtriple=amdgcn-- -mcpu=gfx803 -passes=amdgpu-codegenprepare %s | FileCheck -check-prefixes=CHECK,GFX8 %s
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; Ignore correct case
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define half @log_f16(half %x) {
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; CHECK-LABEL: define half @log_f16(
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; CHECK-SAME: half [[X:%.*]]) #[[ATTR0:[0-9]+]] {
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; CHECK-NEXT: [[RESULT:%.*]] = call half @llvm.log.f16(half [[X]])
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; CHECK-NEXT: ret half [[RESULT]]
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;
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%result = call half @llvm.log.f16(half %x)
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ret half %result
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}
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; afn case should be handled by codegen
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define half @log_afn_f16(half %x) {
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; CHECK-LABEL: define half @log_afn_f16(
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; CHECK-SAME: half [[X:%.*]]) #[[ATTR0]] {
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; CHECK-NEXT: [[RESULT:%.*]] = call afn half @llvm.log.f16(half [[X]])
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; CHECK-NEXT: ret half [[RESULT]]
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;
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%result = call afn half @llvm.log.f16(half %x)
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ret half %result
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}
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; exact ulp threshold
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define half @log_f16_ulp180(half %x) {
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; GFX7-LABEL: define half @log_f16_ulp180(
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; GFX7-SAME: half [[X:%.*]]) #[[ATTR0]] {
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; GFX7-NEXT: [[RESULT:%.*]] = call half @llvm.log.f16(half [[X]]), !fpmath [[META0:![0-9]+]]
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; GFX7-NEXT: ret half [[RESULT]]
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;
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; GFX8-LABEL: define half @log_f16_ulp180(
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; GFX8-SAME: half [[X:%.*]]) #[[ATTR0]] {
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; GFX8-NEXT: [[TMP1:%.*]] = call half @llvm.log2.f16(half [[X]])
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; GFX8-NEXT: [[RESULT:%.*]] = fmul half [[TMP1]], 6.933590e-01
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; GFX8-NEXT: ret half [[RESULT]]
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;
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%result = call half @llvm.log.f16(half %x), !fpmath !{float 0x3FFCCCCCC0000000}
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ret half %result
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}
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; off by one, ignore
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define half @log_f16_ulp180_nextdown(half %x) {
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; GFX7-LABEL: define half @log_f16_ulp180_nextdown(
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; GFX7-SAME: half [[X:%.*]]) #[[ATTR0]] {
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; GFX7-NEXT: [[RESULT:%.*]] = call half @llvm.log.f16(half [[X]]), !fpmath [[META1:![0-9]+]]
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; GFX7-NEXT: ret half [[RESULT]]
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;
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; GFX8-LABEL: define half @log_f16_ulp180_nextdown(
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; GFX8-SAME: half [[X:%.*]]) #[[ATTR0]] {
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; GFX8-NEXT: [[RESULT:%.*]] = call half @llvm.log.f16(half [[X]]), !fpmath [[META0:![0-9]+]]
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; GFX8-NEXT: ret half [[RESULT]]
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;
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%result = call half @llvm.log.f16(half %x), !fpmath !{float 0x3FFCCCCCA0000000}
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ret half %result
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}
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; OpenCL limit
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define half @log_f16_ulp2(half %x) {
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; GFX7-LABEL: define half @log_f16_ulp2(
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; GFX7-SAME: half [[X:%.*]]) #[[ATTR0]] {
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; GFX7-NEXT: [[RESULT:%.*]] = call half @llvm.log.f16(half [[X]]), !fpmath [[META2:![0-9]+]]
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; GFX7-NEXT: ret half [[RESULT]]
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;
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; GFX8-LABEL: define half @log_f16_ulp2(
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; GFX8-SAME: half [[X:%.*]]) #[[ATTR0]] {
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; GFX8-NEXT: [[TMP1:%.*]] = call half @llvm.log2.f16(half [[X]])
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; GFX8-NEXT: [[RESULT:%.*]] = fmul half [[TMP1]], 6.933590e-01
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; GFX8-NEXT: ret half [[RESULT]]
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;
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%result = call half @llvm.log.f16(half %x), !fpmath !0
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ret half %result
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}
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; OpenCL limit
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define half @log10_f16_ulp2(half %x) {
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; GFX7-LABEL: define half @log10_f16_ulp2(
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; GFX7-SAME: half [[X:%.*]]) #[[ATTR0]] {
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; GFX7-NEXT: [[RESULT:%.*]] = call half @llvm.log10.f16(half [[X]]), !fpmath [[META2]]
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; GFX7-NEXT: ret half [[RESULT]]
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;
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; GFX8-LABEL: define half @log10_f16_ulp2(
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; GFX8-SAME: half [[X:%.*]]) #[[ATTR0]] {
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; GFX8-NEXT: [[TMP1:%.*]] = call half @llvm.log2.f16(half [[X]])
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; GFX8-NEXT: [[RESULT:%.*]] = fmul half [[TMP1]], 3.010250e-01
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; GFX8-NEXT: ret half [[RESULT]]
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;
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%result = call half @llvm.log10.f16(half %x), !fpmath !0
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ret half %result
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}
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; Ignore log2
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define half @log2_f16_ulp2(half %x) {
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; GFX7-LABEL: define half @log2_f16_ulp2(
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; GFX7-SAME: half [[X:%.*]]) #[[ATTR0]] {
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; GFX7-NEXT: [[RESULT:%.*]] = call half @llvm.log2.f16(half [[X]]), !fpmath [[META2]]
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; GFX7-NEXT: ret half [[RESULT]]
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;
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; GFX8-LABEL: define half @log2_f16_ulp2(
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; GFX8-SAME: half [[X:%.*]]) #[[ATTR0]] {
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; GFX8-NEXT: [[RESULT:%.*]] = call half @llvm.log2.f16(half [[X]]), !fpmath [[META1:![0-9]+]]
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; GFX8-NEXT: ret half [[RESULT]]
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;
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%result = call half @llvm.log2.f16(half %x), !fpmath !0
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ret half %result
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}
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; afn case should be handled by codegen
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define half @log_afn_f16_ulp2(half %x) {
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; GFX7-LABEL: define half @log_afn_f16_ulp2(
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; GFX7-SAME: half [[X:%.*]]) #[[ATTR0]] {
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; GFX7-NEXT: [[RESULT:%.*]] = call afn half @llvm.log.f16(half [[X]]), !fpmath [[META2]]
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; GFX7-NEXT: ret half [[RESULT]]
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;
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; GFX8-LABEL: define half @log_afn_f16_ulp2(
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; GFX8-SAME: half [[X:%.*]]) #[[ATTR0]] {
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; GFX8-NEXT: [[RESULT:%.*]] = call afn half @llvm.log.f16(half [[X]]), !fpmath [[META1]]
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; GFX8-NEXT: ret half [[RESULT]]
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;
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%result = call afn half @llvm.log.f16(half %x), !fpmath !0
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ret half %result
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}
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; Handle vector with scalarization
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define <2 x half> @log_v2f16_ulp2(<2 x half> %x) {
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; GFX7-LABEL: define <2 x half> @log_v2f16_ulp2(
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; GFX7-SAME: <2 x half> [[X:%.*]]) #[[ATTR0]] {
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; GFX7-NEXT: [[RESULT:%.*]] = call <2 x half> @llvm.log.v2f16(<2 x half> [[X]]), !fpmath [[META2]]
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; GFX7-NEXT: ret <2 x half> [[RESULT]]
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;
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; GFX8-LABEL: define <2 x half> @log_v2f16_ulp2(
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; GFX8-SAME: <2 x half> [[X:%.*]]) #[[ATTR0]] {
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; GFX8-NEXT: [[TMP1:%.*]] = call <2 x half> @llvm.log2.v2f16(<2 x half> [[X]])
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; GFX8-NEXT: [[RESULT:%.*]] = fmul <2 x half> [[TMP1]], splat (half 6.933590e-01)
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; GFX8-NEXT: ret <2 x half> [[RESULT]]
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;
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%result = call <2 x half> @llvm.log.v2f16(<2 x half> %x), !fpmath !0
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ret <2 x half> %result
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}
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; Handle vector with scalarization
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define <3 x half> @log_v3f16_ulp2(<3 x half> %x) {
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; GFX7-LABEL: define <3 x half> @log_v3f16_ulp2(
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; GFX7-SAME: <3 x half> [[X:%.*]]) #[[ATTR0]] {
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; GFX7-NEXT: [[RESULT:%.*]] = call <3 x half> @llvm.log.v3f16(<3 x half> [[X]]), !fpmath [[META2]]
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; GFX7-NEXT: ret <3 x half> [[RESULT]]
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;
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; GFX8-LABEL: define <3 x half> @log_v3f16_ulp2(
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; GFX8-SAME: <3 x half> [[X:%.*]]) #[[ATTR0]] {
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; GFX8-NEXT: [[TMP1:%.*]] = call <3 x half> @llvm.log2.v3f16(<3 x half> [[X]])
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; GFX8-NEXT: [[RESULT:%.*]] = fmul <3 x half> [[TMP1]], splat (half 6.933590e-01)
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; GFX8-NEXT: ret <3 x half> [[RESULT]]
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;
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%result = call <3 x half> @llvm.log.v3f16(<3 x half> %x), !fpmath !0
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ret <3 x half> %result
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}
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; bfloat not handled
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define bfloat @log_bf16_ulp2(bfloat %x) {
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; GFX7-LABEL: define bfloat @log_bf16_ulp2(
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; GFX7-SAME: bfloat [[X:%.*]]) #[[ATTR0]] {
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; GFX7-NEXT: [[RESULT:%.*]] = call bfloat @llvm.log.bf16(bfloat [[X]]), !fpmath [[META2]]
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; GFX7-NEXT: ret bfloat [[RESULT]]
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;
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; GFX8-LABEL: define bfloat @log_bf16_ulp2(
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; GFX8-SAME: bfloat [[X:%.*]]) #[[ATTR0]] {
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; GFX8-NEXT: [[RESULT:%.*]] = call bfloat @llvm.log.bf16(bfloat [[X]]), !fpmath [[META1]]
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; GFX8-NEXT: ret bfloat [[RESULT]]
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;
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%result = call bfloat @llvm.log.bf16(bfloat %x), !fpmath !0
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ret bfloat %result
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}
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!0 = !{float 2.0}
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;.
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; GFX7: [[META0]] = !{float 1.800000e+00}
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; GFX7: [[META1]] = !{float f0x3FE66665}
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; GFX7: [[META2]] = !{float 2.000000e+00}
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;.
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; GFX8: [[META0]] = !{float f0x3FE66665}
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; GFX8: [[META1]] = !{float 2.000000e+00}
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;.
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