[llvm] [AArch64][SelectionDAG] Expand v1f64-typed sin, cos, pow, log, exp intrinsics (PR #83745)

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Sun Mar 3 14:06:31 PST 2024


llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-backend-aarch64

Author: Takuya Shimizu (hazohelet)

<details>
<summary>Changes</summary>

This patch makes NEON-enabled AArch64 backend expand the `sin, cos, pow, log, log2, log10, exp, exp2, exp10` intrinsics for `v1f64` data type, all of which caused selection failure before this patch.
Fixes https://github.com/llvm/llvm-project/issues/83729


---
Full diff: https://github.com/llvm/llvm-project/pull/83745.diff


5 Files Affected:

- (modified) llvm/lib/Target/AArch64/AArch64ISelLowering.cpp (+3) 
- (modified) llvm/test/CodeGen/AArch64/fexplog.ll (+65) 
- (modified) llvm/test/CodeGen/AArch64/fpow.ll (+15) 
- (modified) llvm/test/CodeGen/AArch64/fsincos.ll (+26) 
- (modified) llvm/test/CodeGen/AArch64/llvm.exp10.ll (+12-5) 


``````````diff
diff --git a/llvm/lib/Target/AArch64/AArch64ISelLowering.cpp b/llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
index 7f80e877cb2406..193386e70808cc 100644
--- a/llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
+++ b/llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
@@ -1084,6 +1084,9 @@ AArch64TargetLowering::AArch64TargetLowering(const TargetMachine &TM,
           ISD::FMUL,           ISD::FDIV,           ISD::FMA,
           ISD::FNEG,           ISD::FABS,           ISD::FCEIL,
           ISD::FSQRT,          ISD::FFLOOR,         ISD::FNEARBYINT,
+          ISD::FSIN,           ISD::FCOS,           ISD::FPOW,
+          ISD::FLOG,           ISD::FLOG2,          ISD::FLOG10,
+          ISD::FEXP,           ISD::FEXP2,          ISD::FEXP10,
           ISD::FRINT,          ISD::FROUND,         ISD::FROUNDEVEN,
           ISD::FTRUNC,         ISD::FMINNUM,        ISD::FMAXNUM,
           ISD::FMINIMUM,       ISD::FMAXIMUM,       ISD::STRICT_FADD,
diff --git a/llvm/test/CodeGen/AArch64/fexplog.ll b/llvm/test/CodeGen/AArch64/fexplog.ll
index e3c0ced79f07a6..79f980723c1d4e 100644
--- a/llvm/test/CodeGen/AArch64/fexplog.ll
+++ b/llvm/test/CodeGen/AArch64/fexplog.ll
@@ -36,6 +36,19 @@ entry:
   ret half %c
 }
 
+define <1 x double> @exp_v1f64(<1 x double> %x) {
+; CHECK-LABEL: exp_v1f64:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    str x30, [sp, #-16]! // 8-byte Folded Spill
+; CHECK-NEXT:    .cfi_def_cfa_offset 16
+; CHECK-NEXT:    .cfi_offset w30, -16
+; CHECK-NEXT:    bl exp
+; CHECK-NEXT:    ldr x30, [sp], #16 // 8-byte Folded Reload
+; CHECK-NEXT:    ret
+  %c = call <1 x double> @llvm.exp.v1f64(<1 x double> %x)
+  ret <1 x double> %c
+}
+
 define <2 x double> @exp_v2f64(<2 x double> %a) {
 ; CHECK-SD-LABEL: exp_v2f64:
 ; CHECK-SD:       // %bb.0: // %entry
@@ -1295,6 +1308,19 @@ entry:
   ret half %c
 }
 
+define <1 x double> @exp2_v1f64(<1 x double> %x) {
+; CHECK-LABEL: exp2_v1f64:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    str x30, [sp, #-16]! // 8-byte Folded Spill
+; CHECK-NEXT:    .cfi_def_cfa_offset 16
+; CHECK-NEXT:    .cfi_offset w30, -16
+; CHECK-NEXT:    bl exp2
+; CHECK-NEXT:    ldr x30, [sp], #16 // 8-byte Folded Reload
+; CHECK-NEXT:    ret
+  %c = call <1 x double> @llvm.exp2.v1f64(<1 x double> %x)
+  ret <1 x double> %c
+}
+
 define <2 x double> @exp2_v2f64(<2 x double> %a) {
 ; CHECK-SD-LABEL: exp2_v2f64:
 ; CHECK-SD:       // %bb.0: // %entry
@@ -2554,6 +2580,19 @@ entry:
   ret half %c
 }
 
+define <1 x double> @log_v1f64(<1 x double> %x) {
+; CHECK-LABEL: log_v1f64:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    str x30, [sp, #-16]! // 8-byte Folded Spill
+; CHECK-NEXT:    .cfi_def_cfa_offset 16
+; CHECK-NEXT:    .cfi_offset w30, -16
+; CHECK-NEXT:    bl log
+; CHECK-NEXT:    ldr x30, [sp], #16 // 8-byte Folded Reload
+; CHECK-NEXT:    ret
+  %c = call <1 x double> @llvm.log.v1f64(<1 x double> %x)
+  ret <1 x double> %c
+}
+
 define <2 x double> @log_v2f64(<2 x double> %a) {
 ; CHECK-SD-LABEL: log_v2f64:
 ; CHECK-SD:       // %bb.0: // %entry
@@ -3813,6 +3852,19 @@ entry:
   ret half %c
 }
 
+define <1 x double> @log2_v1f64(<1 x double> %x) {
+; CHECK-LABEL: log2_v1f64:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    str x30, [sp, #-16]! // 8-byte Folded Spill
+; CHECK-NEXT:    .cfi_def_cfa_offset 16
+; CHECK-NEXT:    .cfi_offset w30, -16
+; CHECK-NEXT:    bl log2
+; CHECK-NEXT:    ldr x30, [sp], #16 // 8-byte Folded Reload
+; CHECK-NEXT:    ret
+  %c = call <1 x double> @llvm.log2.v1f64(<1 x double> %x)
+  ret <1 x double> %c
+}
+
 define <2 x double> @log2_v2f64(<2 x double> %a) {
 ; CHECK-SD-LABEL: log2_v2f64:
 ; CHECK-SD:       // %bb.0: // %entry
@@ -5072,6 +5124,19 @@ entry:
   ret half %c
 }
 
+define <1 x double> @log10_v1f64(<1 x double> %x) {
+; CHECK-LABEL: log10_v1f64:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    str x30, [sp, #-16]! // 8-byte Folded Spill
+; CHECK-NEXT:    .cfi_def_cfa_offset 16
+; CHECK-NEXT:    .cfi_offset w30, -16
+; CHECK-NEXT:    bl log10
+; CHECK-NEXT:    ldr x30, [sp], #16 // 8-byte Folded Reload
+; CHECK-NEXT:    ret
+  %c = call <1 x double> @llvm.log10.v1f64(<1 x double> %x)
+  ret <1 x double> %c
+}
+
 define <2 x double> @log10_v2f64(<2 x double> %a) {
 ; CHECK-SD-LABEL: log10_v2f64:
 ; CHECK-SD:       // %bb.0: // %entry
diff --git a/llvm/test/CodeGen/AArch64/fpow.ll b/llvm/test/CodeGen/AArch64/fpow.ll
index 1dd5450c271cbe..65d7c203f0807c 100644
--- a/llvm/test/CodeGen/AArch64/fpow.ll
+++ b/llvm/test/CodeGen/AArch64/fpow.ll
@@ -37,6 +37,21 @@ entry:
   ret half %c
 }
 
+define <1 x double> @pow_v1f64(<1 x double> %x) {
+; CHECK-LABEL: pow_v1f64:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    str x30, [sp, #-16]! // 8-byte Folded Spill
+; CHECK-NEXT:    .cfi_def_cfa_offset 16
+; CHECK-NEXT:    .cfi_offset w30, -16
+; CHECK-NEXT:    adrp x8, .LCPI3_0
+; CHECK-NEXT:    ldr d1, [x8, :lo12:.LCPI3_0]
+; CHECK-NEXT:    bl pow
+; CHECK-NEXT:    ldr x30, [sp], #16 // 8-byte Folded Reload
+; CHECK-NEXT:    ret
+  %c = call <1 x double> @llvm.pow.v1f64(<1 x double> %x, <1 x double> <double 3.140000e+00>)
+  ret <1 x double> %c
+}
+
 define <2 x double> @pow_v2f64(<2 x double> %a, <2 x double> %b) {
 ; CHECK-SD-LABEL: pow_v2f64:
 ; CHECK-SD:       // %bb.0: // %entry
diff --git a/llvm/test/CodeGen/AArch64/fsincos.ll b/llvm/test/CodeGen/AArch64/fsincos.ll
index 2c76d969d6efe1..704ec9a5b66255 100644
--- a/llvm/test/CodeGen/AArch64/fsincos.ll
+++ b/llvm/test/CodeGen/AArch64/fsincos.ll
@@ -36,6 +36,19 @@ entry:
   ret half %c
 }
 
+define <1 x double> @sin_v1f64(<1 x double> %x) {
+; CHECK-LABEL: sin_v1f64:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    str x30, [sp, #-16]! // 8-byte Folded Spill
+; CHECK-NEXT:    .cfi_def_cfa_offset 16
+; CHECK-NEXT:    .cfi_offset w30, -16
+; CHECK-NEXT:    bl sin
+; CHECK-NEXT:    ldr x30, [sp], #16 // 8-byte Folded Reload
+; CHECK-NEXT:    ret
+  %c = call <1 x double> @llvm.sin.v1f64(<1 x double> %x)
+  ret <1 x double> %c
+}
+
 define <2 x double> @sin_v2f64(<2 x double> %a) {
 ; CHECK-SD-LABEL: sin_v2f64:
 ; CHECK-SD:       // %bb.0: // %entry
@@ -1295,6 +1308,19 @@ entry:
   ret half %c
 }
 
+define <1 x double> @cos_v1f64(<1 x double> %x) {
+; CHECK-LABEL: cos_v1f64:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    str x30, [sp, #-16]! // 8-byte Folded Spill
+; CHECK-NEXT:    .cfi_def_cfa_offset 16
+; CHECK-NEXT:    .cfi_offset w30, -16
+; CHECK-NEXT:    bl cos
+; CHECK-NEXT:    ldr x30, [sp], #16 // 8-byte Folded Reload
+; CHECK-NEXT:    ret
+  %c = call <1 x double> @llvm.cos.v1f64(<1 x double> %x)
+  ret <1 x double> %c
+}
+
 define <2 x double> @cos_v2f64(<2 x double> %a) {
 ; CHECK-SD-LABEL: cos_v2f64:
 ; CHECK-SD:       // %bb.0: // %entry
diff --git a/llvm/test/CodeGen/AArch64/llvm.exp10.ll b/llvm/test/CodeGen/AArch64/llvm.exp10.ll
index 70df88ba9f8985..0ff260000b17c7 100644
--- a/llvm/test/CodeGen/AArch64/llvm.exp10.ll
+++ b/llvm/test/CodeGen/AArch64/llvm.exp10.ll
@@ -537,11 +537,18 @@ define double @exp10_f64(double %x) {
   ret double %r
 }
 
-; FIXME: Broken
-; define <1 x double> @exp10_v1f64(<1 x double> %x) {
-;   %r = call <1 x double> @llvm.exp10.v1f64(<1 x double> %x)
-;   ret <1 x double> %r
-; }
+define <1 x double> @exp10_v1f64(<1 x double> %x) {
+; CHECK-LABEL: exp10_v1f64:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    str x30, [sp, #-16]! // 8-byte Folded Spill
+; CHECK-NEXT:    .cfi_def_cfa_offset 16
+; CHECK-NEXT:    .cfi_offset w30, -16
+; CHECK-NEXT:    bl exp10
+; CHECK-NEXT:    ldr x30, [sp], #16 // 8-byte Folded Reload
+; CHECK-NEXT:    ret
+  %r = call <1 x double> @llvm.exp10.v1f64(<1 x double> %x)
+  ret <1 x double> %r
+}
 
 define <2 x double> @exp10_v2f64(<2 x double> %x) {
 ; SDAG-LABEL: exp10_v2f64:

``````````

</details>


https://github.com/llvm/llvm-project/pull/83745


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